$FF5B/65371: Initialize screen editor
Jump from $FCFB, $FF81:
FF5B: 20 18 E5 JSR $E518 ; Initialize I/O
Jump from $FF61:
FF5E: AD 12 D0 LDA $D012 ; VIC: Raster Position
FF61: D0 FB BNE $FF5E
FF63: AD 19 D0 LDA $D019 ; VIC: Interrupt Request Register (IRR)
FF66: 29 01 AND #$01
FF68: 8D A6 02 STA $02A6 ; Flag: TV Standard
FF6B: 4C DD FD JMP $FDDD ; Enable Timer
Jump from $FDF6:
FF6E: A9 81 LDA #$81
FF70: 8D 0D DC STA $DC0D ; CIA1: Interrupt (IRQ) Control Register
FF73: AD 0E DC LDA $DC0E ; CIA1: Control Register A
FF76: 29 80 AND #$80
FF78: 09 11 ORA #$11
FF7A: 8D 0E DC STA $DC0E ; CIA1: Control Register A
FF7D: 4C 8E EE JMP $EE8E ; Serial Clock Off
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